TI-2026-61673 Aliases CVE-2026-90716 GHSA-563x-fw87-x47c

marcobambini Gravity Number gravity_parser.c parse_number_expression out-of-bounds

MEDIUM 56CWE-119Published 2026-09-14 · Updated 2026-09-16

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A vulnerability was detected in marcobambini Gravity up to 0.9.7. This impacts the function parse_number_expression of the file src/compiler/gravity_parser.c of the component Number Parser. Performing a manipulation results in out-of-bounds read. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 0.9.8 will fix this issue. The patch is named 1b9bbf3ad5749e2a3434e6ad073c6e93c24207b6. It is recommended to upgrade the affected component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00365 30th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed Gravity (marcobambini): 0.9.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
marcobambini	Gravity	0.9.0; 0.9.1; 0.9.2; 0.9.3; 0.9.4; 0.9.5; 0.9.6; 0.9.7	0.9.8	Patch available	CNA

Gravity Vendormarcobambini Affected 0.9.0; 0.9.1; 0.9.2; 0.9.3; 0.9.4; 0.9.5; 0.9.6; 0.9.7 Fixed in 0.9.8 Patch available CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:marcobambini:gravity::::::::	—	—	marcobambini

cpe:2.3:a:marcobambini:gravity:*:*:*:*:*:*:*:* Versions — — ·marcobambini

Remediation

Fix · CNA Gravity (marcobambini) Fixed in 0.9.8

Timeline

2026-10-02 Threatist record created from CVE-2026-90716
2026-10-03 Alias added: GHSA-563x-fw87-x47c

References

Exploit 1

https://github.com/marcobambini/gravity/issues/446

Patch 3

Other 1

https://github.com/marcobambini/gravity/

TI-2026-29254 Creolabs Gravity < 0.9.6 Heap Buffer Overflow via gravity_vm_exec CVSS 4.0CRITICAL 9.3
TI-2026-61672 marcobambini Gravity udp json-parser gravity_json.c integer overflow CVSS 4.0MEDIUM 6.9
TI-2026-61671 marcobambini Gravity JSON parser gravity_json.c memory corruption CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences